A154944 - OEIS

A154944

Primes p such that (p-1)*p*(p+1)-p+2 and (p-1)*p*(p+1)+p-2 are primes.

19, 37, 67, 151, 367, 859, 1471, 2791, 2971, 3061, 4357, 4447, 4507, 6367, 7159, 7237, 7591, 8311, 8647, 11617, 12211, 12601, 13249, 14947, 15271, 15661, 16699, 18097, 19777, 20149, 20347, 20947, 21019, 22741, 23311, 23857, 24019, 25867, 26701

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OFFSET

1,1

LINKS

Table of n, a(n) for n=1..39.

MATHEMATICA

lst={}; Do[p=Prime[n]; If[PrimeQ[(p-1)*p*(p+1)-p+2]&&PrimeQ[(p-1)*p*(p+1)+p-2], AppendTo[lst, p]], {n, 8!}]; lst

CROSSREFS

Cf. A053184, A038872, A141158, A038615, A098058, A038936, A089270, A140559, A154939, A154942

Sequence in context: A124268 A339860 A259648 * A039321 A043144 A043924

Adjacent sequences: A154941 A154942 A154943 * A154945 A154946 A154947

KEYWORD

nonn

AUTHOR

Vladimir Joseph Stephan Orlovsky, Jan 17 2009

STATUS

approved